Articles | Volume 18, issue 15
https://doi.org/10.5194/amt-18-3715-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-3715-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
11 Aug 2025
Research article |
| 11 Aug 2025
| 11 Aug 2025
Improved simulation of thunderstorm characteristics and polarimetric signatures with LIMA two-moment microphysics in AROME
CNRM, Université de Toulouse, Météo-France, CNRS, Toulouse, France
Clotilde Augros
CNRM, Université de Toulouse, Météo-France, CNRS, Toulouse, France
Benoit Vié
CNRM, Université de Toulouse, Météo-France, CNRS, Toulouse, France
François Bouttier
CNRM, Université de Toulouse, Météo-France, CNRS, Toulouse, France
Tony Le Bastard
CNRM, Université de Toulouse, Météo-France, CNRS, Lannion, France
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Short summary
Simulations of storm characteristics and associated radar signatures were improved, especially under the freezing level, using an advanced cloud scheme. Discrepancies between observations and forecasts at and above the melting layer highlighted issues in both the radar forward operator and the microphysics. To overcome some of these issues, different parameterizations of the operator were suggested. This work aligns with the future integration of polarimetric data into assimilation systems.
Simulations of storm characteristics and associated radar signatures were improved, especially...
